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-rw-r--r--drivers/infiniband/hw/mlx4/mad.c118
-rw-r--r--drivers/infiniband/hw/mlx4/main.c29
-rw-r--r--drivers/infiniband/hw/mlx4/mlx4_ib.h9
3 files changed, 122 insertions, 34 deletions
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index 84786a9fb64f..58c45fb5bd31 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -147,47 +147,49 @@ static void update_sm_ah(struct mlx4_ib_dev *dev, u8 port_num, u16 lid, u8 sl)
}
/*
- * Snoop SM MADs for port info and P_Key table sets, so we can
- * synthesize LID change and P_Key change events.
+ * Snoop SM MADs for port info, GUID info, and P_Key table sets, so we can
+ * synthesize LID change, Client-Rereg, GID change, and P_Key change events.
*/
static void smp_snoop(struct ib_device *ibdev, u8 port_num, struct ib_mad *mad,
- u16 prev_lid)
+ u16 prev_lid)
{
- struct ib_event event;
+ struct ib_port_info *pinfo;
+ u16 lid;
+ struct mlx4_ib_dev *dev = to_mdev(ibdev);
if ((mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED ||
mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) &&
- mad->mad_hdr.method == IB_MGMT_METHOD_SET) {
- if (mad->mad_hdr.attr_id == IB_SMP_ATTR_PORT_INFO) {
- struct ib_port_info *pinfo =
- (struct ib_port_info *) ((struct ib_smp *) mad)->data;
- u16 lid = be16_to_cpu(pinfo->lid);
+ mad->mad_hdr.method == IB_MGMT_METHOD_SET)
+ switch (mad->mad_hdr.attr_id) {
+ case IB_SMP_ATTR_PORT_INFO:
+ pinfo = (struct ib_port_info *) ((struct ib_smp *) mad)->data;
+ lid = be16_to_cpu(pinfo->lid);
- update_sm_ah(to_mdev(ibdev), port_num,
+ update_sm_ah(dev, port_num,
be16_to_cpu(pinfo->sm_lid),
pinfo->neighbormtu_mastersmsl & 0xf);
- event.device = ibdev;
- event.element.port_num = port_num;
+ if (pinfo->clientrereg_resv_subnetto & 0x80)
+ mlx4_ib_dispatch_event(dev, port_num,
+ IB_EVENT_CLIENT_REREGISTER);
- if (pinfo->clientrereg_resv_subnetto & 0x80) {
- event.event = IB_EVENT_CLIENT_REREGISTER;
- ib_dispatch_event(&event);
- }
+ if (prev_lid != lid)
+ mlx4_ib_dispatch_event(dev, port_num,
+ IB_EVENT_LID_CHANGE);
+ break;
- if (prev_lid != lid) {
- event.event = IB_EVENT_LID_CHANGE;
- ib_dispatch_event(&event);
- }
- }
+ case IB_SMP_ATTR_PKEY_TABLE:
+ mlx4_ib_dispatch_event(dev, port_num,
+ IB_EVENT_PKEY_CHANGE);
+ break;
- if (mad->mad_hdr.attr_id == IB_SMP_ATTR_PKEY_TABLE) {
- event.device = ibdev;
- event.event = IB_EVENT_PKEY_CHANGE;
- event.element.port_num = port_num;
- ib_dispatch_event(&event);
+ case IB_SMP_ATTR_GUID_INFO:
+ mlx4_ib_dispatch_event(dev, port_num,
+ IB_EVENT_GID_CHANGE);
+ break;
+ default:
+ break;
}
- }
}
static void node_desc_override(struct ib_device *dev,
@@ -305,7 +307,8 @@ static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
return IB_MAD_RESULT_FAILURE;
if (!out_mad->mad_hdr.status) {
- smp_snoop(ibdev, port_num, in_mad, prev_lid);
+ if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV))
+ smp_snoop(ibdev, port_num, in_mad, prev_lid);
node_desc_override(ibdev, out_mad);
}
@@ -446,3 +449,62 @@ void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev)
ib_destroy_ah(dev->sm_ah[p]);
}
}
+
+void handle_port_mgmt_change_event(struct work_struct *work)
+{
+ struct ib_event_work *ew = container_of(work, struct ib_event_work, work);
+ struct mlx4_ib_dev *dev = ew->ib_dev;
+ struct mlx4_eqe *eqe = &(ew->ib_eqe);
+ u8 port = eqe->event.port_mgmt_change.port;
+ u32 changed_attr;
+
+ switch (eqe->subtype) {
+ case MLX4_DEV_PMC_SUBTYPE_PORT_INFO:
+ changed_attr = be32_to_cpu(eqe->event.port_mgmt_change.params.port_info.changed_attr);
+
+ /* Update the SM ah - This should be done before handling
+ the other changed attributes so that MADs can be sent to the SM */
+ if (changed_attr & MSTR_SM_CHANGE_MASK) {
+ u16 lid = be16_to_cpu(eqe->event.port_mgmt_change.params.port_info.mstr_sm_lid);
+ u8 sl = eqe->event.port_mgmt_change.params.port_info.mstr_sm_sl & 0xf;
+ update_sm_ah(dev, port, lid, sl);
+ }
+
+ /* Check if it is a lid change event */
+ if (changed_attr & MLX4_EQ_PORT_INFO_LID_CHANGE_MASK)
+ mlx4_ib_dispatch_event(dev, port, IB_EVENT_LID_CHANGE);
+
+ /* Generate GUID changed event */
+ if (changed_attr & MLX4_EQ_PORT_INFO_GID_PFX_CHANGE_MASK)
+ mlx4_ib_dispatch_event(dev, port, IB_EVENT_GID_CHANGE);
+
+ if (changed_attr & MLX4_EQ_PORT_INFO_CLIENT_REREG_MASK)
+ mlx4_ib_dispatch_event(dev, port,
+ IB_EVENT_CLIENT_REREGISTER);
+ break;
+
+ case MLX4_DEV_PMC_SUBTYPE_PKEY_TABLE:
+ mlx4_ib_dispatch_event(dev, port, IB_EVENT_PKEY_CHANGE);
+ break;
+ case MLX4_DEV_PMC_SUBTYPE_GUID_INFO:
+ mlx4_ib_dispatch_event(dev, port, IB_EVENT_GID_CHANGE);
+ break;
+ default:
+ pr_warn("Unsupported subtype 0x%x for "
+ "Port Management Change event\n", eqe->subtype);
+ }
+
+ kfree(ew);
+}
+
+void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num,
+ enum ib_event_type type)
+{
+ struct ib_event event;
+
+ event.device = &dev->ib_dev;
+ event.element.port_num = port_num;
+ event.event = type;
+
+ ib_dispatch_event(&event);
+}
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 5266b49c46ee..4f230c26622d 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -898,7 +898,6 @@ static void update_gids_task(struct work_struct *work)
union ib_gid *gids;
int err;
struct mlx4_dev *dev = gw->dev->dev;
- struct ib_event event;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox)) {
@@ -916,10 +915,7 @@ static void update_gids_task(struct work_struct *work)
pr_warn("set port command failed\n");
else {
memcpy(gw->dev->iboe.gid_table[gw->port - 1], gw->gids, sizeof gw->gids);
- event.device = &gw->dev->ib_dev;
- event.element.port_num = gw->port;
- event.event = IB_EVENT_GID_CHANGE;
- ib_dispatch_event(&event);
+ mlx4_ib_dispatch_event(gw->dev, gw->port, IB_EVENT_GID_CHANGE);
}
mlx4_free_cmd_mailbox(dev, mailbox);
@@ -1383,10 +1379,18 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
}
static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
- enum mlx4_dev_event event, int port)
+ enum mlx4_dev_event event, unsigned long param)
{
struct ib_event ibev;
struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr);
+ struct mlx4_eqe *eqe = NULL;
+ struct ib_event_work *ew;
+ int port = 0;
+
+ if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE)
+ eqe = (struct mlx4_eqe *)param;
+ else
+ port = (u8)param;
if (port > ibdev->num_ports)
return;
@@ -1405,6 +1409,19 @@ static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
ibev.event = IB_EVENT_DEVICE_FATAL;
break;
+ case MLX4_DEV_EVENT_PORT_MGMT_CHANGE:
+ ew = kmalloc(sizeof *ew, GFP_ATOMIC);
+ if (!ew) {
+ pr_err("failed to allocate memory for events work\n");
+ break;
+ }
+
+ INIT_WORK(&ew->work, handle_port_mgmt_change_event);
+ memcpy(&ew->ib_eqe, eqe, sizeof *eqe);
+ ew->ib_dev = ibdev;
+ handle_port_mgmt_change_event(&ew->work);
+ return;
+
default:
return;
}
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
index 5f298afaa81f..23bfbf9ee0e0 100644
--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -224,6 +224,12 @@ struct mlx4_ib_dev {
int eq_added;
};
+struct ib_event_work {
+ struct work_struct work;
+ struct mlx4_ib_dev *ib_dev;
+ struct mlx4_eqe ib_eqe;
+};
+
static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
{
return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
@@ -381,4 +387,7 @@ static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
union ib_gid *gid);
+void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num,
+ enum ib_event_type type);
+
#endif /* MLX4_IB_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 13:06:11 +0000